CN104801190A - Hollow fiber membrane filtration core potting mold and use method thereof - Google Patents
Hollow fiber membrane filtration core potting mold and use method thereof Download PDFInfo
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- CN104801190A CN104801190A CN201410033610.1A CN201410033610A CN104801190A CN 104801190 A CN104801190 A CN 104801190A CN 201410033610 A CN201410033610 A CN 201410033610A CN 104801190 A CN104801190 A CN 104801190A
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Abstract
The present invention discloses a hollow fiber membrane filtration core potting mold and a use method thereof. The potting mold is made from a hydrophobic organic material and has advantages of simple structure, easy processing and easy use, wherein the hydrophobic organic material has a low surface energy so as to effectively reduce the adhesion between the potting glue and the potting mold, such that the potted and casted filtration core can be completely demolded, the demolding difficulty is reduced, the damage on the work-piece during the demolding process is avoided, and the potting efficiency is effectively improved. According to the use method of the potting mold, with the pre-treatment process on the potting mold, the demolding difficulty is further reduced, and the potting efficiency is improved.
Description
Technical field
The present invention relates to the manufacture field of hollow fiber membrane cartridge, particularly relate to a kind of hollow fiber membrane cartridge encapsulating die and using method thereof.
Background technology
Doughnut micro-filtration/ultrafiltration membrane elements is application of membrane the most a kind of form.General, doughnut micro-filtration/ultrafiltration membrane elements is made up of thousands of hollow fiber film threads, and hollow-fibre membrane exists micropore, allows solvent and the material permeance being less than micropore size, retain the material being greater than micropore size simultaneously, be therefore widely used in drink water purifying field.
As the hollow fiber membrane cartridge of water purifier core component, compared with ceramic element, active carbon filter core etc., there is the advantages such as specific area is large, packed density is high, easy cleaning.Distinguish according to the placement form of filter core inner membrance tow, hollow fiber membrane cartridge can be divided into U-shaped external-compression type and column type inner pressed two kinds.Wherein, U-shaped external pressing type hollow fibrous membrane filter core is applied generally in family expenses small-sized water purifying appliance, and its size is less, mainly through centrifugal casting method embedding, there is the inefficient shortcoming of cast, column type inner pressed filter core is then used in the big-and-middle-sized purifiers such as pipeline water-purifying machine and Treatment of Industrial Water, for enhancing productivity, reduce production cost, in present stage industry, cast production is carried out to column type inner pressed filter core many employings encapsulating die, and existing encapsulating die is mainly with aluminium alloy, stainless steel and other metal materials is cast, although achieve large batch of production, but the bonding force between the main casting glue such as the encapsulating die of metal material and Epoxy/Polyurethane is stronger, there is the problem that artificial demoulding difficulty is large, particularly in knockout course, filter core and mould stressed excessive or uneven time, easily cause the damage of mould and filter core.
Summary of the invention
Based on the problems referred to above, the invention provides a kind of hollow fiber membrane cartridge encapsulating die and using method thereof, ensure that embedding efficiency, solve the problem that in existing encapsulation technology, demoulding difficulty is large simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
A kind of hollow fiber membrane cartridge encapsulating die, described encapsulating die is made up of Hydrophobic organic materials.
Wherein in an embodiment, the inner chamber of described encapsulating die is charge groove, the bottom end closure of described charge groove;
The bottom of described charge groove is plane, and madial wall is stepped.
Wherein in an embodiment, the madial wall of described charge groove is provided with the first ladder, for fixing filter-core shell;
The external diameter Φ A of described first ladder is equal with the external diameter of described filter-core shell.
Wherein in an embodiment, the width L1 of described first ladder is more than or equal to the thickness of described filter-core shell.
Wherein in an embodiment, the madial wall of described charge groove is also provided with the second ladder, and described second ladder is near the blind end of described charge groove.
Wherein in an embodiment, the width L2 of described second ladder is not less than 2mm.
Wherein in an embodiment, described Hydrophobic organic materials is the one in silicon rubber, fluorubber and fluoroplastics.
A using method for hollow fiber membrane cartridge encapsulating die, comprises the following steps:
S100: uniform application one deck lubricant on the inwall of described charge groove;
S200: pour into casting glue, standing and defoaming in described charge groove; The addition of wherein said casting glue is at least 30% of charge groove cubical content;
S300: vertically insert film tow in the bottom of described charge groove, and described filter-core shell is vertically inserted on the first ladder of the madial wall of described charge groove;
S400: after the solidification of described casting glue, film tow and filter-core shell bond together formation filter core, are deviate from by described filter core from described charge groove.
Wherein in an embodiment, described lubricant is the one in vaseline, grease, cup grease and releasing agent.
Wherein in an embodiment, described casting glue is epoxy resin or polyurethane.
Hollow fiber membrane cartridge encapsulating die structure of the present invention is simple, easily processes, easy to use; Encapsulating die adopts Hydrophobic organic materials preparation, because Hydrophobic organic materials has lower surface energy, therefore the adhesion between casting glue and encapsulating die is effectively reduced, make embedding pour into a mould after filter core can complete deviate from, reduce demoulding difficulty, avoid the damage of workpiece in knockout course, effectively improve embedding efficiency; The using method of this encapsulating die, by the pre-treating technology (smearing lubricant) to encapsulating die, reduce further demoulding difficulty, improves embedding efficiency.
Accompanying drawing explanation
Fig. 1 is the top view of hollow fiber membrane cartridge encapsulating die one embodiment of the present invention;
Fig. 2 is the A-A direction view of the encapsulating die of hollow fiber membrane cartridge shown in Fig. 1.
Detailed description of the invention
The present invention is described in detail below in conjunction with embodiment.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
The invention provides a kind of hollow fiber membrane cartridge encapsulating die, bonding with the sealing of filter-core shell for film tow, this encapsulating die is made up of Hydrophobic organic materials.Wherein, hollow fiber membrane cartridge can be microfiltration membranes, also can be milipore filter.
Compared with metal material, hydrophobic material has lower surface energy, it is less that casting glue solidifies adhesion between rear and encapsulating die, reduce artificial demoulding difficulty, prevent encapsulating die and filter core unbalance stress or the stressed excessive workpiece damage caused in knockout course, effectively improve the acceptance rate of embedding efficiency and filter core product.In the present invention to hydrophobic material without special restriction, be preferably the one in silicon rubber, fluorubber and fluoroplastics, fluoroplastics are preferably polytetrafluoroethylene (PTFE).For silicon rubber, when carrying out the selection of encapsulating die material, the silicon rubber casting encapsulating die of different hardness can be selected according to the machinability of mould and demoulding difficulty.
As a kind of embodiment, the inner chamber of above-mentioned encapsulating die is the charge groove of bottom end closure, for holding casting glue.Casting glue is used for filter-core shell and film tow to be bonded together to make filter core, is sealed at the two ends of filter core simultaneously, overflows after preventing former water from entering filter core.
The present invention without particular/special requirement, is preferably the one in epoxy resin or polyurethane for casting glue, and its cohesive force for filter-core shell and film tow is comparatively strong, and ageing-resistant, corrosion-resistant, effectively can play effect that is bonding, sealing.Preferably, casting glue before use, first carries out deaeration process, by the gas removing in glue, to ensure its caking property and sealing; Concrete, select defoamer to carry out vacuum defoamation to casting glue, effectively can remove the bubble in casting glue fast.
Preferably, the bottom of charge groove is plane, and the madial wall of charge groove is stepped.When the embedding carrying out film tow and filter-core shell is poured into a mould, film tow vertically inserts in charge groove, and the bottom connection of one end of film tow and charge groove touches; Filter-core shell is vertically fixed on the ladder of the madial wall of charge groove.It should be noted that, in operation, first will by concordant for the end face shutoff of film tow, then film tow is vertically inserted in charge groove, to ensure that the follow-up encapsulation of filter core is carried out and the neat degree of FINAL APPEARANCE smoothly; And the bottom of charge groove is plane in present embodiment, after making film tow and filter-core shell carry out embedding cast, still concordant end face can be kept.
Above-mentioned encapsulating die main body is the charge groove of bottom end closure, and structure is simple, easily processes, easy to use; And madial wall adopts stair-stepping design, make the final cast outward appearance also stepped design of filter core, serve and control the object that filter core finally pours into a mould outward appearance; Meanwhile, stair-stepping filter cartridge construction is easily deviate from from encapsulating die, effectively reduces demoulding difficulty, improves embedding efficiency.
As a kind of embodiment, the madial wall of charge groove is provided with the first ladder, for fixing filter-core shell, and the external diameter Φ A of the first ladder is equal with the external diameter of filter-core shell.When carrying out embedding cast, filter-core shell is vertically inserted in charge groove, because the external diameter of filter-core shell is equal with the external diameter of the first ladder, therefore, the lateral wall of filter-core shell and the madial wall of charge groove fit, and filter-core shell can be fastened in charge groove, enhance its firm performance.
In above-described embodiment, the width of the first ladder is more than or equal to the thickness of filter-core shell.When filter-core shell is inserted into after in charge groove, due to the wider width of the first ladder, make the end of filter-core shell to be placed on fully on the first ladder and to be unlikely unsettled, further increase the steadiness of filter-core shell; And when the width of the first ladder is greater than the thickness of filter-core shell, in embedding casting process, between filter-core shell and film tow, there is gap, this gap fill by casting glue, avoid the generation of the contact phenomena of film tow and filter-core shell madial wall, ensure that security performance and the sealing property of filter core.
Preferably, as a kind of embodiment, the madial wall of charge groove is also provided with the second ladder, and the second ladder is near the blind end of charge groove.When carrying out embedding cast, poured into by casting glue in charge groove, film tow vertically inserts the bottom of charge groove, and filter-core shell is vertically inserted and secured on the first ladder; When the width of the first ladder is equal with the thickness of filter-core shell, the second ladder is that filter-core shell and film tow provide insulating space, and casting glue can be filled in this insulating space, forms glue ring, film tow and filter-core shell madial wall can not be come in contact after solidification.The width of the second ladder is larger, and the glue ring formed between filter-core shell and film tow after embedding cast is thicker, and more preferably, the width of the second ladder is not less than 2mm.
In the preparation process of encapsulating die of the present invention, the external diameter of the first ladder and width can design according to the external diameter of filter-core shell and thickness, and filter-core shell is mated mutually with the first ladder; The width of the second ladder can design according to the FINAL APPEARANCE of filter core and technological requirement (thickness requirement as to glue ring between filter-core shell and film tow); The internal diameter of charge groove then designs according to the loading of film tow, and conversely, the internal diameter of charge groove determines the maximum loading of film tow.
In order to further the present invention is described, describe the present invention with a specific embodiment below.
Embodiment 1
See Fig. 1 and Fig. 2, be an embodiment of the encapsulating die of hollow-fibre membrane of the present invention, in this embodiment, encapsulating die is made up of the concentric cylinder of bottom end closure, and its inner chamber forms charge groove 100.Charge groove 100 has following characteristics: the madial wall of charge groove 100 is provided with the first ladder 110 and the second ladder 120, second ladder 120 near the bottom 130 of charge groove 100; The bottom 130 of charge groove 100 is plane; The silicon rubber that charge groove 100 is 90 degree by hardness is made.
Concrete, in the present embodiment, the external diameter Φ A of the first ladder 110 is 94mm, the half of the external diameter Φ A of width L1(first ladder 110 and the difference of its internal diameter) be 4mm; The external diameter of width L2(second ladder 120 of the second ladder 120 and the half of the difference of its internal diameter) be 3mm; The diameter of phi B of the bottom of charge groove is 82mm, and the diameter of phi B of the bottom 130 of charge groove 100 determines according to film tow loading.Wherein, the diameter of the bottom 130 of charge groove 100 is equivalent to the internal diameter of the second ladder 120, and the external diameter of the second ladder 120 is equivalent to the internal diameter of the first ladder 110.In the present embodiment, the maximum height H1 of charge groove 100 is 69mm, the height H 2 of the inner chamber of charge groove 100 is 57mm, and the second ladder 120 upper surface is 42mm to the height H 3 of charge groove 100 upper surface, and the first ladder 110 upper surface is 37mm to the height H 4 of charge groove 100 upper surface.
When carrying out embedding cast, in charge groove 100, inject casting glue, the amount of casting glue accounts for 90% of charge groove 100 cubical content; Film tow is vertically inserted into the bottom 130 of charge groove 100, filter-core shell is vertically fixed on the first ladder 110 simultaneously; Now, filled by casting glue in the space above the second ladder 120, serve the effect of isolation filter-core shell and film tow.
Above-mentioned encapsulating die structure is simple, easy to use, and reusable, and has stronger practicality, is applicable to the embedding cast of multiple hollow fiber ultrafiltration membrane filter core; Adopt Hydrophobic organic materials be raw material preparation, there is less surface energy, and solidification after casting glue between adhesion lower, reduce embedding cast terminate after demoulding difficulty; Reached the object controlling filter core outward appearance by stair-stepping structural design, reduce cast difficulty, avoid the phenomenon that filter-core shell contacts with film tow and occur; Improve the acceptance rate of demoulding operating efficiency and final filter core product.
In actual applications, diameter of phi B, the maximum height H1 of charge groove 100 of the external diameter Φ A of the first ladder 110, the bottom 130 of charge groove 100, height H 2, second ladder 120 upper surface of the inner chamber of charge groove 100 can be determined to the height H 3 of charge groove 100 upper surface and the first ladder 110 upper surface according to actual needs to the concrete numerical value of the height H 4 of charge groove 100 upper surface.
Present invention also offers a kind of using method of hollow fiber membrane cartridge encapsulating die, the method adopts above-mentioned hollow fiber membrane cartridge encapsulating die, comprises the following steps:
S100: uniform application one deck lubricant on the inwall of charge groove; Lubricant can be vaseline, grease, cup grease and releasing agent, and lubricant preferably chooses medical ventolin, and its cost is low, wholesomeness good, and has preferably isolation effect;
S200: pour into appropriate casting glue in charge groove, standing and defoaming; Usually, the addition of casting glue at least accounts for 30% of charge groove cubical content, and casting glue is preferably epoxy resin or polyurethane;
S300: vertically insert film tow in the bottom of charge groove, and filter-core shell is vertically inserted on the first ladder of the madial wall of charge groove;
As a kind of embodiment, before step S200, need by concordant for the end face shutoff of film tow, to ensure the neat of embedding cast rear end face.
S400: after casting glue solidification, film tow and filter-core shell bond together formation filter core, are deviate from by filter core from charge groove.
In the above-mentioned methods, when the embedding carrying out filter-core shell and film tow is poured into a mould, encapsulating die is carried out pre-treatment, namely one deck lubricant is smeared at the inwall of encapsulating die, play the effect of isolation encapsulating die and casting glue, in conjunction with feature (lower surface energy) and the stair-stepping design of encapsulating die Hydrophobic organic materials of the present invention, effectively reduce the adhesion between encapsulating die and casting glue, reduce demoulding difficulty, improve overall embedding efficiency and product yield.
Above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a hollow fiber membrane cartridge encapsulating die, is characterized in that, described encapsulating die is made up of Hydrophobic organic materials.
2. hollow fiber membrane cartridge encapsulating die according to claim 1, is characterized in that, the inner chamber of described encapsulating die is charge groove, the bottom end closure of described charge groove;
The bottom of described charge groove is plane, and madial wall is stepped.
3. hollow fiber membrane cartridge encapsulating die according to claim 2, is characterized in that, the madial wall of described charge groove is provided with the first ladder, for fixing filter-core shell;
The external diameter Φ A of described first ladder is equal with the external diameter of described filter-core shell.
4. hollow fiber membrane cartridge encapsulating die according to claim 3, is characterized in that, the width L1 of described first ladder is more than or equal to the thickness of described filter-core shell.
5. the hollow fiber membrane cartridge encapsulating die according to claim 3 or 4, is characterized in that, the madial wall of described charge groove is also provided with the second ladder, and described second ladder is near the blind end of described charge groove.
6. hollow fiber membrane cartridge encapsulating die according to claim 5, is characterized in that, the width L2 of described second ladder is not less than 2mm.
7. hollow fiber membrane cartridge encapsulating die according to claim 1, is characterized in that, described Hydrophobic organic materials is the one in silicon rubber, fluorubber and fluoroplastics.
8. a using method for the hollow fiber membrane cartridge encapsulating die described in claim 1 to 7 any one, is characterized in that, comprise the following steps:
S100: uniform application one deck lubricant on the inwall of described charge groove;
S200: pour into casting glue, standing and defoaming in described charge groove; The addition of wherein said casting glue is at least 30% of charge groove cubical content;
S300: vertically insert film tow in the bottom of described charge groove, and filter-core shell is vertically inserted on the first ladder of the madial wall of described charge groove;
S400: after the solidification of described casting glue, film tow and filter-core shell bond together formation filter core, are deviate from by described filter core from described charge groove.
9. the using method of hollow fiber membrane cartridge encapsulating die according to claim 8, is characterized in that, described lubricant is the one in vaseline, grease, cup grease and releasing agent.
10. the using method of hollow fiber membrane cartridge encapsulating die according to claim 8, is characterized in that, described casting glue is epoxy resin or polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410033610.1A CN104801190B (en) | 2014-01-23 | 2014-01-23 | Hollow fiber membrane cartridge encapsulating die and its application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410033610.1A CN104801190B (en) | 2014-01-23 | 2014-01-23 | Hollow fiber membrane cartridge encapsulating die and its application method |
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| CN104801190A true CN104801190A (en) | 2015-07-29 |
| CN104801190B CN104801190B (en) | 2018-11-09 |
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| CN201410033610.1A Active CN104801190B (en) | 2014-01-23 | 2014-01-23 | Hollow fiber membrane cartridge encapsulating die and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349790A (en) * | 2017-07-25 | 2017-11-17 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
| CN107433135A (en) * | 2017-07-25 | 2017-12-05 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
| CN107469626A (en) * | 2017-07-25 | 2017-12-15 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
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| CN2455348Y (en) * | 2000-11-27 | 2001-10-24 | 王红军 | Package housing for hollow fiber membrane assembly |
| CN201783304U (en) * | 2010-08-25 | 2011-04-06 | 茅忠海 | Hollow fiber film filter element static pouring jig |
| CN203750418U (en) * | 2014-01-23 | 2014-08-06 | 珠海格力电器股份有限公司 | Encapsulating mold for filter core of hollow fiber membrane |
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2014
- 2014-01-23 CN CN201410033610.1A patent/CN104801190B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455348Y (en) * | 2000-11-27 | 2001-10-24 | 王红军 | Package housing for hollow fiber membrane assembly |
| CN201783304U (en) * | 2010-08-25 | 2011-04-06 | 茅忠海 | Hollow fiber film filter element static pouring jig |
| CN203750418U (en) * | 2014-01-23 | 2014-08-06 | 珠海格力电器股份有限公司 | Encapsulating mold for filter core of hollow fiber membrane |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349790A (en) * | 2017-07-25 | 2017-11-17 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
| CN107433135A (en) * | 2017-07-25 | 2017-12-05 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
| CN107469626A (en) * | 2017-07-25 | 2017-12-15 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
| CN107469626B (en) * | 2017-07-25 | 2023-04-28 | 珠海格力电器股份有限公司 | Filter element |
| CN107433135B (en) * | 2017-07-25 | 2023-05-23 | 珠海格力电器股份有限公司 | Manufacturing method of filter element |
| CN107349790B (en) * | 2017-07-25 | 2023-05-23 | 珠海格力电器股份有限公司 | Filter element, bonding end head and manufacturing method of filter element |
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| CN104801190B (en) | 2018-11-09 |
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